diff --git a/migrations/1724229744369_principal_stx_txs_idx.js b/migrations/1724229744369_principal_stx_txs_idx.js
new file mode 100644
index 000000000..fe9135c35
--- /dev/null
+++ b/migrations/1724229744369_principal_stx_txs_idx.js
@@ -0,0 +1,22 @@
+/** @param { import("node-pg-migrate").MigrationBuilder } pgm */
+exports.up = pgm => {
+  pgm.createIndex(
+    'principal_stx_txs', 
+    [
+      'principal',
+      { name: 'block_height', order: 'DESC' },
+      { name: 'microblock_sequence', order: 'DESC' },
+      { name: 'tx_index', order: 'DESC' }],
+    {
+      name: 'idx_principal_stx_txs_optimized',
+      where: 'canonical = TRUE AND microblock_canonical = TRUE',
+    }
+  );
+};
+
+/** @param { import("node-pg-migrate").MigrationBuilder } pgm */
+exports.down = pgm => {
+  pgm.dropIndex('principal_stx_txs', ['principal', 'block_height', 'microblock_sequence', 'tx_index'], {
+    name: 'idx_principal_stx_txs_optimized',
+  });
+};